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Epigenetic mechanisms regulating developmental stage-dependent change in cortical neural stem cell property

Research Project

Project/Area Number 20K06875
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 46010:Neuroscience-general-related
Research InstitutionKyushu University

Principal Investigator

Katada Sayako  九州大学, 医学研究院, 助教 (00615685)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords神経発生 / 幹細胞分化 / エピジェネティクス / 神経幹細胞 / DNAメチル化 / ニューロン分化 / 分化 / 運命決定 / 細胞分化
Outline of Research at the Start

神経幹細胞は発生過程に、ニューロンからアストロサイトへと産生する細胞種を変換させる。ニューロン産生時期の神経幹細胞であっても、in vitro培養を継続することで、ニューロン分化能が消失し、アストロサイトへと分化する細胞が増加する。本課題で注目するニューロン分化関連遺伝子のエンハンサー候補領域は、in vivoとin vitro双方で同様にメチル化修飾を獲得するため、これらに時期/領域特異的にDNAメチル化修飾を導入する分子機構を明らかにすることは、発生過程でおこる神経幹細胞の性質変化の分子基盤を解明するだけでなく、ニューロン分化能を維持した神経幹細胞の培養法確立など、応用面でも期待ができる。

Outline of Final Research Achievements

During the development of the mammalian cerebral cortex, first emerged neural stem cells have high potency of self-renew, then differentiated into neurons in mid gestation, and then astrocytes in late gestational stage. We have previously reported that DNA demethylation near astrocytic genes is important for acquisition of astrocyte differentiation. Not only that we found several of important transcription factors for neurogenesis acquire DNA methylation at their proximal regions in late gestation. To investigate molecular mechanism of this developmental progression-dependent gain of DNA methylation, we search factors that could bind to these regions and found transcriptional repressor Trim28 as a candidate by ChIP-Atlas. We confirmed that knock down of Trim 28 increased pro-neuronal gene Neurog1 expression and neuronal differentiation. Therefore, we note Trim28 as important epigenetic factor for neural stem cell fate regulation.

Academic Significance and Societal Importance of the Research Achievements

これまで、神経幹細胞のエピジェネティクス制御に関して、ニューロン分化を制御するDNAメチル化修飾は報告がない。着目する発生進行依存的なDNAメチル化領域は、遺伝子発現を制御する重要なエンハンサー領域である可能性が高く、これら領域のエピゲノム制御を担う分子を解明することが出来れば、神経幹細胞分化における新規のエピジェネティクス制御機構の提示のみならず、これを操作することでin vitro培養系においても、長期に高いニューロン分化能力を備えた神経幹細胞の維持など、応用面における貢献も期待が高い。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (10 results)

All 2022 2021 2020

All Journal Article (4 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 4 results,  Open Access: 2 results) Presentation (6 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results)

  • [Journal Article] DNA damage promotes HLA class I presentation by stimulating a pioneer round of translation-associated antigen production2022

    • Author(s)
      Uchihara Yuki、Permata Tiara Bunga Mayang、Sato Hiro、Kawabata-Iwakawa Reika、Katada Sayako、Gu Wenchao、Kakoti Sangeeta、Yamauchi Motohiro、Kato Reona、Gondhowiardjo Soehartati、Hosen Naoki、Yasuhara Takaaki、Shibata Atsushi
    • Journal Title

      Molecular Cell

      Volume: 82 Issue: 14 Pages: 2557-2570.e7

    • DOI

      10.1016/j.molcel.2022.04.030

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] scRNA sequencing uncovers a TCF4-dependent transcription factor network regulating commissure development in mouse2021

    • Author(s)
      Wittmann Marie-Theres、Katada Sayako、Sock Elisabeth、Kirchner Philipp、Ekici Arif B.、Wegner Michael、Nakashima Kinichi、Lie Dieter Chichung、Reis Andr?
    • Journal Title

      Development

      Volume: 148 Issue: 14

    • DOI

      10.1242/dev.196022

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Neural stem/precursor cells dynamically change their epigenetic landscape to differentially respond to BMP signaling for fate switching during brain development2021

    • Author(s)
      Sayako Katada、Jun Takouda、Takumi Nakagawa、Mizuki Honda、Katsuhide Igarashi、Takuya Imamura、Yasuyuki Ohkawa、Shoko Sato、Hitoshi Kurumizaka、Kinichi Nakashima
    • Journal Title

      Genes and Development

      Volume: 35 Issue: 21-22 Pages: 1431-1444

    • DOI

      10.1101/gad.348797.121

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] SoxE group transcription factor Sox8 promotes astrocytic differentiation of neural stem/precursor cells downstream of Nfia2021

    • Author(s)
      Jun Takouda, Sayako Katada, Takuya Imamura, TsukasaSanosaka and Kinichi Nakashima
    • Journal Title

      Pharmacology Research & Perspectives

      Volume: ND

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] 胎生期神経幹細胞はダイナミックにエピゲノム変換することで、発生時期に応じて適切な細胞へと分化する2022

    • Author(s)
      堅田明子
    • Organizer
      第15回エピジェネティクス研究会
    • Related Report
      2022 Annual Research Report
  • [Presentation] miRNAs secreted from choroid plexus plays a critical role for the maintenance of neurogenesis in the aged brain2022

    • Author(s)
      Sayako Katada, Yusuke Sakaki, and Kinichi Nakashima
    • Organizer
      Neuro2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 脈絡叢分泌性miRNAによる成体海馬ニューロン新生の調節2022

    • Author(s)
      堅田明子
    • Organizer
      第115回日本繁殖生物学会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] miRNAs secreted from the choroid plexus modulates adult neurogenesis in the mouse hippocampus2022

    • Author(s)
      Sayako Katada, Yusuke Sakaki, and Kinichi Nakashima
    • Organizer
      Development and Plasticity of the Brain
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 脈絡叢分泌性miRNAによる成体海馬ニューロン新生の調節2022

    • Author(s)
      堅田明子、榊祐介、中島欽一
    • Organizer
      第19回成体脳ニューロン新生懇談会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Molecular characterization of aging choroid plexus that regulates neural stem cell’s behavior and brain functions2020

    • Author(s)
      堅田明子
    • Organizer
      日本分子生物学会
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research

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Published: 2020-04-28   Modified: 2024-01-30  

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